1Oswaldo Cruz Institute-Oswaldo Cruz Foundation (IOC-FIOCRUZ), Av. Brasil 4365, Manguinhos, 21040-360 Rio de Janeiro, RJ, Brazil 2National Institute of Science and Technology for Molecular Entomology (INCT-EM), Av. Carlos Chagas Filho 373, Centro de Ciências da Saúde, Bloco D-SS, Sala 05, Cidade Universitária, RJ, Brazil 3Wellcome Trust Centre for Molecular Parasitology, University of Glasgow, ...

In this paper, we describe the dynamics of a vector-borne relapsing disease, such as tick-borne relapsing fever, using the methods of compartmental models. After some motivation and model description we provide a proof of a conjectured general form of the reproductive ratio R0, which is the average number of new infections produced by a single infected individual. A disease free equilibrium und...

There have been several attempts made to the appreciation of remote sensing and GIS for the study of vectors, biodiversity, vector presence, vector abundance and the vector-borne diseases with respect to space and time. This study was made for reviewing and appraising the potential use of remote sensing and GIS applications for spatial prediction of vector-borne diseases transmission. The natur...

The mosquito borne diseases of public health importance are complex and their occurrence depends on the interaction of various biological, ecological, social and economic factors. Though several measures for their prevention and control are followed, yet the problem density is too high with 300–500 million cases and 1.1–2.7 million deaths due to malaria alone globally per year1. Puducherry (ear...

background: the incidence of mosquito-borne diseases and the resistance of mosquitoes to conventional pesticides have recently caused a panic to the authorities in the endemic countries. this study was conducted to identify native larvicidal biopesticides against culex pipiens for utilization in the battle against mosquito-borne diseases. methods: larvicidal activities of new indigenous bacillu...

♦ Personal protective measures, such as using insect repellent, wearing longsleeved shirts and long pants while outdoors, and avoiding tick and mosquito habitat, reduce the risk of vector-borne diseases. Vector-borne Diseases in Hennepin County Key Findings Introduction This Epidemiology Update summarizes vector-borne disease cases and trends in Hennepin County. This issue is one in a series of...

Considerable attention has recently been drawn at the global level to the serious threat to humans caused by new, emerging and re-emerging infectious diseases. Among the infectious vector-borne diseases, dengue, dengue haemorrhagic fever, yellow fever, plague, malaria, leishmaniasis, rodent-borne viruses and arboviruses are considered to be persisting, and sometimes re-emerging, with serious th...

Conventional methodologies to control vector borne diseases with chemical pesticides are often associated with environmental toxicity, adverse effects on human health and the emergence of insect resistance. In the paratransgenic strategy, symbiotic or commensal microbes of host insects are transformed to express gene products that interfere with pathogen transmission. These genetically altered ...

The use of new, highly sensitive diagnostic methods has revealed persistent infections to be a common feature of different tick-borne diseases, such as babesiosis, anaplasmosis and heartwater. Antigenic variation can contribute to disease persistence through the continual elaboration of new surface structures, and we know in several instances how this is achieved. Known or suspected mechanisms ...